190 
Short on the Botany of Illinois , 
place of C. Americanus in the Barrens of Kentucky,) Pren- 
anthes Illinoensw , Eryngium aquaticum , Petalostemumviolaceum , 
D raco cep h alum Virginianum , Baptisia leueantha , several spe¬ 
cies ol Liatris , Coreopsis , A sterf Solidago ,t Rudbeckiag Helian- 
thus ,§ Pycnanthemum , Gerarclia , Pedicular is ^ Genliana , &c., 
&c. Those two beautiful plants, for our knowledge of both 
of which, I believe, we are indebted to Mr. Nuttall, the .As¬ 
ter sericeus , and Amorpha canescen », are very generally dif¬ 
fused, but not in the same abundance with many others. In¬ 
deed, they constitute an exception to the habit of congrega¬ 
tion which obtains among so many of their associates. 
As is the case, I believe, with the American Flora through¬ 
out the United States, and, indeed, the whole Continent, the 
autumnal botany of the prairies exhibits a large preponder¬ 
ance of the Composites. Besides those already mentioned, we 
may* * * § here enumerate, as of frequent occurrence, Chrysopsis 
mariana , Helenium autumnale , Boltonia. glastifolia and B. as- 
teraides. Bidens frondosa and B. chrysanthemoides , Eupatorium 
serotinum , If. aromaticum , if. ageraloides , if. purpureum , 
E. perfoliatum , <^r., Cnicus glutinosus , C. Virginianus , C. 
muticus , C. altissim.us , <^c., Silphium laciniatum , $. integrifo- 
lium , >S T . terebinthinaceum, 4*c., Prenanthes aspera , P. virgata , 
P. racemosa , P. serpentaria , ^c., Vernonia fasciculata , F. 
corymbosa , and one or two other species. 
In a farmer’s, or rather a grazier’s estimation, the grasses 
would be regarded as the most valuable of the natural pro¬ 
ductions of the prairies; and we will next mention some of 
* Aster /<ms, A. iVew« Anglia, A. rigidus, A. gracilis , A. phlogifo - 
/ms, A. concolor, A. azureus , A. undulatus, A. multiflorus, A. oblongifo- 
lius , A. turbinellus, A. carneus , &c. 
f Solidago rigida , 5. nemoralis , 5'. graminifolia, S. Ridellii, S. sero- 
iina, S. spcciosa, S. Oliioensis, S. neglecta , &c. 
t Rudbeckia purpurea , 7?. laciniata, R. hirta, R. subtomentosa, R. 
pinnata, &c. 
§ Helianthus angustifolius, H. rigidus , If. occidentals, H. grosse-ser- 
ratus, H. tomentosus, H. mollis, H. pubescens, II. microcephalus, H, to- 
mentosus, II. loetijlorus, &c. 
